状皮层在因果关系上是国家依赖决策所必需的
Akhil C Bandi1, John P McCann2, Rachel M Carpenter2
1Neuroscience Institute, Carnegie Mellon University, Pittsburgh, PA, USA; Center for the Neural Basis of Cognition, University of Pittsburgh, Pittsburgh, PA, USA.
这项研究揭示了大脑状态如何影响决策. 后壁皮质 (PPC) 对于表现状态至关重要,影响小鼠的神经活动和指导行为.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 决策科学 决策科学 决策科学
背景情况:
- 决策中的行为表现随着内部状态的波动而波动.
- 这些状态变化对神经处理的影响尚未完全理解.
研究的目的:
- 研究行为表现状态和大脑皮层的神经处理之间的关系.
- 确定后壁皮质 (PPC) 在决策和绩效状态中的因果作用.
主要方法:
- 训练小鼠进行基于导航的声音定位任务.
- 隐藏的马尔科夫建模被用来识别不同的性能状态.
- 使用光遗传性失活和双光子成像来研究PPC和听觉皮层中的神经活动.
主要成果:
- 专家小鼠表现出具有最佳刺激权重的高性能状态和具有选择偏差的低性能状态.
- PPC无活化降低了准确性,增加了偏差状态.
- 性能状态调节了PPC群体活动,但不是主要听觉皮层活动.
- 在不同的性能状态下,PPC神经活动表现出不同的特征.
结论:
- 周围皮层活动是因果关系要求的感知决策.
- 在PPC中神经活动与行为表现状态有动态联系,影响决策结果.
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